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The cerebellar theory of dyslexia asserts that the cause of dyslexia is an abnormality in the cerebellum (a region in the back of the brain), which in turn cause disruption in normal development, which causes issues with motor control, balance, working memory, attention, automatization, and ultimately, reading.
Dyslexia is a brain-based learning disorder "that affects how people process written language, especially when it comes to reading, writing and spelling," explains Jimmy Noorlander, a licensed ...
[5] [27] [28] Approximately 15% [10] or 12–24% of people with dyslexia have ADHD; [29] and up to 35% of people with ADHD have dyslexia. [10] Auditory processing disorder A listening disorder that affects the ability to process auditory information. [30] [31] This can lead to problems with auditory memory and auditory sequencing.
The problems underlying this type of dyslexia are related directly to memory and coding skills that allow representation of printed letters and words, not to poor phonological processing. [11] This type of dyslexia is also termed surface dyslexia because people with this type have the inability to recognize words simply on a visual basis.
In 1979, Galaburda and Kemper [19] and Galaburda et al. 1985, [20] reported observations from the examination of post autopsy brains of people with dyslexia. Observed anatomical differences in the language center in a dyslexic brain, showing microscopic cortical malformations known as ectopias and more rarely vascular micro-malformations and in ...
Letter addition/subtraction - People with dyslexia may perceive a word with letters added, subtracted, or repeated. This can lead to confusion between two words containing most of the same letters. Highly phoneticized spelling - People with dyslexia also commonly spell words inconsistently, but in a highly phonetic form, such as writing "shud ...
Dyslexia is a learning disability that disrupts how the brain processes written language, according to Cleveland Clinic, and, as the most common learning disability in the world, represents ...
The underlying mechanisms of dyslexia result from differences within the brain's language processing. Dyslexia is diagnosed through a series of tests of memory, vision, spelling, and reading skills. Dyslexia is separate from reading difficulties caused by hearing or vision problems or by insufficient teaching or opportunity to learn.